问题描述
我正在 pygame 中制作形状防御游戏。你向敌人发射子弹并在每次获得 100 分时进化。可是，进化到方格的时候就不能开火了？有人知道为什么会这样吗？
这是我当前的代码：
import pygame
import random
from pygame.locals import *
from pygame.color import THECOLORS
pygame.init()
pygame.font.init()
screen = pygame.display.set_mode((800,600))
pygame.display.set_caption("Shape Defense")
class Sprite(pygame.sprite.Sprite):
"""Base class for all sprites"""
def __init__(self,window,x,y,image,size=None):
pygame.sprite.Sprite.__init__(self)
self.screen = window
self.x = x
self.y = y
self.image = pygame.image.load(image)
if size is not None:
self.image = pygame.transform.scale(self.image,size)
self.rect = self.image.get_rect()
self.rect.center = (self.x,self.y)
def update(self):
self.rect.center = (self.x,self.y)
if isinstance(self.image,pygame.Surface):
self.screen.blit(self.image,self.rect)
elif isinstance(self.image,str):
self.screen.blit(pygame.image.load(self.image),self.rect)
class polygon(Sprite):
"""Is it going to be a triangle,a square,a pentagon,or something else?"""
def __init__(self,sides,size=None):
self.sides = sides
self.window = window
self.x = x
self.y = y
self.check_image()
Sprite.__init__(self,self.window,self.x,self.y,self.image,size)
def check_for_movement(self,move_amount=1):
"""Let's get moving!"""
key = pygame.key.get_pressed()
if key[K_w]:
self.y -= move_amount
if key[K_s]:
self.y += move_amount
if key[K_a]:
self.x -= move_amount
if key[K_d]:
self.x += move_amount
def evolve(self):
self.sides += 1
self.check_image()
def check_image(self):
if self.sides == 3: # Is it a triangle?
self.image = "C:/Users/linpang2018/Desktop/TRASHY JUNK/PICTURES/FOR PYGAME GAMES/triangle.png"
elif self.sides == 4:
self.image = "C:/Users/linpang2018/Desktop/TRASHY JUNK/PICTURES/FOR PYGAME GAMES/square.png"
class Bullet(polygon):
"""
I guess I need to change my mind about thinking no shape
games have bullets
"""
def __init__(self,size=None):
self.sides = sides
self.screen = window
self.x = x
self.y = y
polygon.__init__(self,self.sides,self.screen,size)
def update(self):
"""Bombs away!"""
self.y -= 10
self.rect.center = (self.x,self.y)
if self.y < 0:
self.kill()
class Enemy(polygon):
"""This game even has enemies?!"""
def __init__(self,size)
def update(self):
"""Prepare yourself! A heavy attack is incoming! -the enemies"""
self.y += 4
self.rect.center = (self.x,self.y)
if self.y > 650:
self.kill()
class Image(Sprite):
"""Base class for all buttons and images that cover the whole screen"""
def __init__(self,image):
self.window = window
self.x = x
self.y = y
filename = image
Sprite.__init__(self,filename)
bullet_group = pygame.sprite.Group()
enemy_group = pygame.sprite.Group()
player = polygon(3,screen,400,size=(285,200))
lives = 5
score = 0
collided = False
"""Creates score text"""
font = pygame.font.SysFont("Arial",30)
score_text_surface = font.render("score: {:,}".format(score),True,(0,0))
enemy_interval = 2000
enemy_event = USEREVENT + 1
pygame.time.set_timer(enemy_event,enemy_interval)
clock = pygame.time.Clock()
running = True
while running:
"""Event loop"""
for event in pygame.event.get():
if event.type == QUIT:
running = False
"""These lines creates a bullet object when the player clicks the screen"""
if event.type == MOUSEBUTTONDOWN:
if player.sides == 3:
bullet_group.add(Bullet(3,player.x + 4,player.y - 15,size=(170,100)))
elif player.sides == 4:
bullet_group.add(Bullet(3,100)))
if event.type == enemy_event:
enemy_group.add(Enemy(3,random.randint(0,900),50,size=(230,160)))
screen.fill(THECOLORS["skyblue"])
"""Updates the player position and drawing the player"""
player.update()
player.check_for_movement(9)
"""Allows the bullets to appear and fire towards the top of the screen"""
bullet_group.draw(screen)
bullet_group.update()
"""
Updates the enemy sprite(s） and allows the enemy to fly
toward the bottem of the screen
"""
enemy_group.draw(screen)
enemy_group.update()
"""Updates and blits the score text"""
score_text_surface = font.render("score: {:,0))
screen.blit(score_text_surface,(650,10))
"""This blits the game over image if it's game over"""
if lives <= 0:
game_over_bg = Image(screen,390,300,"C:/Users/linpang2018/Desktop/TRASHY JUNK/PICTURES/FOR PYGAME GAMES/game_over.png")
screen.blit(game_over_bg.image,game_over_bg.rect)
"""If a bullet and a enemy collide,delete them both and increase score by 1"""
for i in enemy_group:
if pygame.sprite.spritecollide(i,bullet_group,True):
score += 10
i.kill()
"""If a enemy and the player collide,decrease lives by 1"""
if pygame.sprite.spritecollide(player,enemy_group,True):
lives -= 1
"""Evolves the player if every time score is a multiple of 100 (and it's not 0)"""
if score % 100 == 0 and score != 0:
player.evolve()
pygame.display.update()
clock.tick(40)
我认为这与 player.sides 有关，但可能是其他原因导致问题。
解决方法
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